| Date | Tournament | State | Round | Natalie Tadday | Vicki Underhill |
|---|---|---|---|---|---|
| 02/10/2006 | New South Wales Championships | NSW | 4 | 292 | 365 |
| 09/04/2007 | Australian Championships | NSW | 8 | 325 | 384 |
| 09/04/2007 | Australian Championships | NSW | 24 | 396 | 327 |
| 05/07/2009 | Winter Challenge | NSW | 8 | 409 | 318 |
| Head-to-head after 4 games | 2 | 2 | |||
| Average score | 355.50 | 348.50 | |||
| Spread | 28 | -28 | |||